中文摘要：

利用辅助线圈来实现粒子辐射探测器负高压电源取样电路。以理论分析和PSpice仿真分析为基础对取样电路进行设计。设计的负高压电源供电电压为＋12V，输出电压-160V，占空比6．45％，0～18斗A负载调整率8．8‰，供电电压调整率3．9‰，纹波系数3．1％。。实验结果与理论分析和PSpice仿真分析相吻合，可以为设计这方面的电路提供参考。

英文摘要：

A kind of Sampling Circuit in negative High Voltage Unit （HVU） , which is used to provide the bias voltage to the solid detectors, is designed by using Auxiliary Winding. The Sampling Circuit is designed base on theoretical analysis and PSpice simulation analysis. In the design of HVU, the specifications are ： input voltage ＋ 12 V, output voltage -160 V, pulse- space rate 6.45%, 0 -18 （A load regulation 8.8, voltage regulation3.9 , ripple coefficient is 3.1 . The theoretical analysis and PSpice simulation analysis are agreed to the experiments, so that this method can be a useful reference for such power supply design.